EGD is an Entropy Gathering Daemon meant to be used on systems that can run GPG
but which don't have a convenient (or reliable) source of random bits. It is a
regular user-space program that sits around, running programs like 'w' and
'last' and 'vmstat', collecting the randomness (or at least the
unpredictability) inherent in the output of these system statistics programs
when used on a reasonably busy system. It slowly stirs the output of these
gathering programs into a pool of entropy, much like the linux kernel device,
and allows other programs to read out random bits from this pool.